CN108001050A - Print media is adjusted to obtain - Google Patents
Print media is adjusted to obtain Download PDFInfo
- Publication number
- CN108001050A CN108001050A CN201610965729.1A CN201610965729A CN108001050A CN 108001050 A CN108001050 A CN 108001050A CN 201610965729 A CN201610965729 A CN 201610965729A CN 108001050 A CN108001050 A CN 108001050A
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- China
- Prior art keywords
- servomotor
- print media
- pick
- pwm
- time frame
- Prior art date
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- 238000005259 measurement Methods 0.000 claims abstract description 43
- 238000007639 printing Methods 0.000 claims abstract description 24
- 230000008859 change Effects 0.000 claims description 33
- 238000000034 method Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 7
- 230000004044 response Effects 0.000 claims description 2
- 230000005611 electricity Effects 0.000 description 6
- 238000011022 operating instruction Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 230000001447 compensatory effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012417 linear regression Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/18—Modifying or stopping actuation of separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
- B41J13/02—Rollers
- B41J13/076—Construction of rollers; Bearings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
- B41J29/38—Drives, motors, controls or automatic cut-off devices for the entire printing mechanism
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0669—Driving devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H3/00—Separating articles from piles
- B65H3/02—Separating articles from piles using friction forces between articles and separator
- B65H3/06—Rollers or like rotary separators
- B65H3/0684—Rollers or like rotary separators on moving support, e.g. pivoting, for bringing the roller or like rotary separator into contact with the pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/06—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers
- B65H5/068—Feeding articles separated from piles; Feeding articles to machines by rollers or balls, e.g. between rollers between one or more rollers or balls and stationary pressing, supporting or guiding elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
- B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
- B65H2511/20—Location in space
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2513/00—Dynamic entities; Timing aspects
- B65H2513/50—Timing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
- B65H2515/30—Forces; Stresses
- B65H2515/32—Torque e.g. braking torque
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2553/00—Sensing or detecting means
- B65H2553/51—Encoders, e.g. linear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2555/00—Actuating means
- B65H2555/20—Actuating means angular
- B65H2555/24—Servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2601/00—Problem to be solved or advantage achieved
- B65H2601/20—Avoiding or preventing undesirable effects
- B65H2601/25—Damages to handled material
- B65H2601/255—Jam
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/12—Single-function printing machines, typically table-top machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handling Of Sheets (AREA)
- Delivering By Means Of Belts And Rollers (AREA)
Abstract
Example embodiment is related to adjustment print media and obtains.For example, a kind of system may include printing equipment, printing equipment can have the pick-up roller for attaching to pick-up arm and the servomotor for applying moment of torsion to pick-up roller.The system can further comprise the controller associated with servomotor, with determine print media obtain during in special time frame relative to servomotor desired location servomotor measurement position.Controller can be based further on the comparison that pulsewidth modulation (PWM) is measured in adjacent time frame and determine the adjustment that print media obtains.
Description
Background technology
The pick-up roller of printing equipment can be cylindrical parts, for example, the wheel body coated with rubber.Pick-up roller can help to lead to
Cross with print media with reference to and rotate so that print media is fed into the print zone of printing equipment and obtain print media, than
Such as paper.Print media may occur wrong biography or block so that pick-up roller is pressurized during print media obtains.
Brief description of the drawings
Figure 1A-Figure 1B obtains system exemplified with the sample printing medium for being used to adjust print media acquisition according to the disclosure
Perspective view.
Examples of the Fig. 2 exemplified with the definite site error according to the disclosure.
Fig. 3 shows exemplified with sliding (slippage) that determines the pick-up roller during print media obtains according to the disclosure
Example.
Fig. 4 is exemplified with the schematic diagram of the example system for being used to adjust print media acquisition according to the disclosure, the system bag
Include non-transitory machine readable media and processing source.
Fig. 5 is exemplified with the exemplary method for being used to adjust print media acquisition according to the disclosure.
Embodiment
Example embodiment described here is related to adjustment print media and obtains.For example, a kind of system may include printing dress
Put, printing equipment, which there can be the pick-up roller for being attached to pick-up arm and apply waiing upon for moment of torsion to pick-up roller, takes motor.The system can
Further comprise coding disk, for example, as shown in figure ia with 108, coding disk is with waiing upon that to take motor associated, so as to for example can
By with the controller shown in 110, determining in figure ia during print media obtains in special time frame relative to waiing upon clothes
The desired location of motor waits upon the measurement position for taking motor.Controller can also be based on the torsion for taking motor with waiing upon in adjacent time frame
The comparison of pulsewidth modulation (PWM) that square od is associated amount and determine the adjustment that print media obtains.
The system for print media acquisition be there is described herein (for example, such as showing with 100 and being retouched with reference to Fig. 1
State), such as ink-jet and/or laser printer, duplicator and other embodiment party are used for together with the printing equipment of system 100
Formula.Sheet print media (for example, such as show with 119 and be described with reference to Figure 1A) may be stacked on associated with printing equipment
Input pallet (not shown) on.In some instances, input pallet can be at fixed position, so that the pickup of printing equipment
Arm (for example, such as show with 117 and be described with reference to Figure 1A) can be via the pick-up roller of rotation (for example, being described with reference to Figure 1A
Pick-up roller 115) to print media 119 apply determine amount power (for example, such as being applied by the moment of torsion on pick-up arm 117.
In various examples, input pallet can be at fixed position or usable gasket, such as be upwardly biased by spring members, gasket
The sheet print media 119 of the top is pressed against pick-up roller 115.Thus, the rotation of pick-up roller 115, sheet printing are passed through
Medium 119 can be combined and obtain one by one according to priority since that piece topmost.
Such as the print media being configured as above obtains system and can be used for multiple use.Therefore, these systems are obtained and can had
Various types of print media of size in extensive range, thickness, weight, component, friction coefficient etc..Obtain and grasp in print media
During work, such as when the wrong biography of print media 119 occur and/or blocking, various types of print media 119 may be worn
And/or deformation.
When obtaining the sheet print media 119 stacked using frictional force, every is applied to be pressed against pick-up roller 115
The power of every is bigger, is more possible to obtain multi-disc print media at the same time.Therefore, can be determined by testing via pick-up roller
115 power of every being applied in various types of print media 119 for every print media 119 (for example, determine default
Power), the wrong possibility passed and/or block occurs so as to reduce.If the power applied is too small and/or however still occurs
Wrong biography or blocking, then may slide between that piece print media 119 and pick-up roller 115 of the top.
In some instances, the pick-up roller 115 of printing equipment can be that outer surface is coated with the material selected to apply frictional force
The cylindrical parts of material, such as the wheel body coated with rubber, while pick-up roller 115 is rotatably the print media with sheet
119 contacts.Pick-up roller 115 can be that the interaction of direct and print media 119 of print media acquisition system 100 obtains so as to perform
The part taken.Sliding of the outer surface of pick-up roller 115 on print media 119 be probably by print media 119 it is wrong pass and/or
Caused by blocking, and however pick-up roller 115 still for example via combine Figure 1A description wait upon take motor 102 by driving so as to
Maintain nearly constant rotating speed (for example, angular speed).Therefore, on the material that pick-up roller 115 may be by for example applying frictional force
Abrasion caused by increased friction and be pressurized.For example, rubber coating may be worn, so that pickup must may be replaced
Roller 115.Increased friction is also possible to damage may be caused by the wrong print media 119 for passing and/or blocking and/or increased friction
It is applied to and waits upon the increased stress (for example, load) for taking motor 102, and other possible consequences.
Therefore, the present disclosure describes adjustment print media obtain so as to reduce print media obtain operation during for example through
The pressure that pick-up roller 115 and/or wait upon takes motor 102 is applied to by sliding.For example, based on as the described herein in adjacent time
The comparison of PWM amounts in frame and detect such sliding, thus in some instances can by interrupt and/or restart print media obtain
Operation and/or the adjustment for adjusting the angular speed of pick-up roller 115 and causing print media to obtain, in addition with other possibilities.
Figure 1A-Figure 1B obtains system exemplified with the sample printing medium for being used to adjust print media acquisition according to the disclosure
100 perspective view.As shown in Figure 1A, system 100 may include that waiing upon for printing equipment takes motor 102, for for example via belt, tooth
Wheel etc. combination (for example, its example is illustrated with more details from different perspectives with 104 in fig. ib) and drive 104 rotate pick up
Take roller 115.Figure 1A shows two pick-up rollers 115 by way of example and not of limitation.For example, any number of pick-up roller is wrapped
Include in the scope of the present disclosure.
As the described herein, pick-up roller 115 can be used for reference to sheet print media 119 and obtain the piece to printing to fill
The print zone (not shown) put.In various examples, driving 104 can be operated by feeding roll assembly 112, the feeding roll assembly
112 may be, for example, and be supported by pick-up arm 117 so as to applying moment of torsion so that the driving that pick-up roller 115 can for example be rotated with angular speed
Axis, driving member 114 and/or pick up roller (not shown).Driving member 114 may include the angular speed for being arranged so that pick-up roller 115
It may differ from waiing upon gear, cam, the liquid of the various quantity of the rotating speed for taking motor 102 (for example, revolutions per minute (number of turns) (rpm))
Casting die etc..In some instances, driving member 114 can also apply moment of torsion so that pick-up arm is together with pick-up roller 115 on pick-up arm 117
Rotated together towards print media 119.
In various different examples, driving 104 can cause the rotations of coding disk, for example, show in figure ia with 108 and
Shown in fig. ib with different angle.Thus, coding disk 108 can be taken motor 102 and driven by waiing upon.Coding disk 108 can directly or
Feeding roll assembly 112 is connected in succession.Coding disk 108 may include indicator, such as line, point, notch etc., these indicators can enclose
It is spaced apart around coding disk 108 with a spacing.The indicator (not shown) of coding disk 108 causes sensor (for example, as in fig. ib
Shown with 106) measurement position and/or speed of definite coding disk 108 are can aid in, it is enable to correspondingly determine to wait upon
Take the measurement position and/or measuring speed of motor 102.The position for taking motor 102 and/or speed is waitd upon for example to can refer to wait upon to take motor
102 and/or its output shaft (for example, as shown in Figure 1A and Figure 1B with 103) completed rotation in special time frame
Revolution or fraction.Waiing upon the measurement position for taking motor 102 and/or measuring speed can for example be based on by sensor 106 to special time
The detection of the path of multiple indicators of intraframe coding disk 108.
System 100 may include with waiing upon the controller that to take motor 102 associated, for example, as shown in figure ia with 110 and
Shown in fig. ib with different angle.In various examples, controller 110 can be or may include encoder circuit.Controller 110
Available for the desired location for determining to take motor 102 relative to waiing upon in the special time frame during print media obtains (for example, such as
Shown with 225 and with reference to Fig. 2 describe) wait upon the measurement position for taking motor 102 (for example, such as showing with 226 and being retouched with reference to Fig. 2
State).Desired location 225 can be to wait upon to take motor 102, its output shaft 103 and/or pick-up roller driven when it does not slide
115 are for example expected the rotation of completion at definite time frame for certain types of print media 119 based on test measurement
Revolution or fraction.Controller 110 can be further used for the comparison based on PWM amounts in adjacent time frame (for example, being carried out with reference to Fig. 3
Description) and determine the adjustment (for example, because of the sliding detected) obtained to print media.For example, PWM amounts may be with adjacent time
Site error 236 in frame between measurement position 226 and desired location 225 is related, such as is described with reference to Fig. 2.
In some instances, system 100 may include master controller, for example, as shown in Figure 1B 111.Master controller 111 can
Power supply unit (not shown) is connected to, waits upon and takes motor 102, driving 104, sensor 106, coding disk 108 and/or controller 110
And the interaction between the miscellaneous part and/or tunable of system 100 these components.In various examples, master controller 111
And/or controller 110 can be respectively printed circuit assembly (PCA), such as wherein controller 110 can be the son of master controller 111
PCA.Thus, for clarity, controller 110 is described as being connected to and/or controlling another component herein, for example, waiing upon clothes electricity
Machine 102, sensor 106, pick-up roller 115 etc., to carry out various determine.However, in some instances, controller 110 can be with master
Controller 111 is connected to and/or controls together miscellaneous part, to carry out various determine.For clarity, master controller 111 is gone back
It is shown as being close in controller 110 and setting.However, in various examples, master controller 111 can be located at any of system 100
Other positions.
In some instances, controller 110 may be connected to sensor 106 to determine to wait upon the measurement position for taking motor 102
226.Thus, controller 110 can determine the PWM amounts in adjacent time frame based on site error, which is, for example, for example
Wait upon the absolute value for taking the measurement position 226 of motor 102 relative to the difference of desired location 225.As described in this, PWM amounts can be right
Ying Yu waits upon the adjustment for taking 102 moment of torsion of motor.Wait upon and take the moment of torsion of motor 102 and can be adjusted (such as can be increased), so as to increase
Load compensate, the increase of load is due to the increasing ignored caused by sliding of the pick-up roller 115 on print media 119
The friction (such as load) that adds and attempting maintain the constant default angular speed of such as pick-up roller 115 and caused by.Show at some
In example, change rate and the comparison of threshold value that controller 110 can be based on PWM and control pick-up roller 115 during print media obtains
Angular speed, such as be described with reference to Fig. 3, Fig. 4 and/or Fig. 5.
Examples of the Fig. 2 exemplified with the definite site error according to the disclosure.Fig. 2, which shows to wait upon on vertical axis, takes motor
102 position 222 represents 220 with 224 sections of the figure of time on horizontal axis, wherein, position 222 is from initial position (Ps)
To end position (Pe), 224 of time is from initial time (Ts) to end time (Te).
Can be periodically by the related measured value (for example, data value) in position and/or speed that motor 102 is taken with waiing upon from biography
Sensor 106 is sent to controller 110 (for example, encoder circuit) so that wait upon take the measurement position 226 of motor 102 can
Periodically updated.For example, wait upon take motor 102 measurement position 226 can per the several seconds renewal once, such as one second, two seconds, five seconds
Deng or its fraction, for example, 1/10th seconds, centisecond, millisecond, microsecond etc..
In order to obtain the print media 119 (such as paper) of sheet, wait upon take motor 102 can be with speed V (speed V) from Ps
Turn to Pe.Based on these variables, completing the time T of the acquisition of print media 119 can be calculated as：T=(Pe-Ps)/V.In order to
The more detailed expression obtained is obtained, complete obtain can be divided into N number of smaller portions based on renewal time t, such as at 227
T-1, the t at 228, t+2 at the t+1 and 230 at 229 etc., as shown in Figure 2.Represent the Delta Time of corresponding time frame
(such as Δ t1、Δt2With Δ t3Deng), available for by time frame Δ tnInterior definite time point (tn) place desired location 225 and/or
226 (P of measurement positionn) it is expressed as Δ t=T/N and Pn=[(Pe-Ps)/N] * n.
Time frame Δ tnInterior time point tnCan be all the time in each time frame Δ tnDetermined at interior particular point in time, for example,
Each corresponding time frame Δ t1、Δt2With Δ t3Renewal time t, t+1 and t+2 Deng at the end of etc..In each time frame of acquisition
ΔtnPlace, based on identified time error (such as the site error 1 at 236-1, the site error 2 at 236-2 and 236-
Site error 3 at 3 etc.), PWM may correspond to be applied to and wait upon the voltage for taking motor 102 and change.For example, when such as in renewal
Between locate as determining when measurement position 226 is less than desired location 225 in time frame, to be applied to the PWM for waiing upon and taking motor 102
(voltage) may increase a certain amount, the next Δ t obtained for print media.Increased moment of torsion can be intended to unreal
Existing desired location 225 compensates.When the measurement position 226 in time frame is more than desired location 225, it is applied to and waits upon clothes electricity
The PWM (voltage) of machine 102 may reduce a certain amount, for next Δ t of acquisition, so as to reduce its moment of torsion with to super
Go out desired location 225 to compensate.
Time interval between renewal is referred to alternatively as sampling time Δ t, such as time frame Δ tn.For clarity, Fig. 2 with
Δt1、Δt2With Δ t3Show three time frames, but figure represents that 220 example there can be an infinite number of time frame.Time
Frame Δ t1231 between the previous renewal time t-1 at the renewal time t and 227 at 228, time frame Δ t2232 between
Between subsequent renewal time t+1 at renewal time t and 229 at 228, and time frame Δ t3234 renewal at 229
Between subsequent renewal time t+2 at time t+1 and 230.In some instances, the renewal time t+2 at 230 may correspond to
Te.As shown in figure expression 220 in Fig. 2, measurement position 226 can have the slope and/or curvature of change in each time frame,
The gradient and/or curvature can be sampled with refining the renewal time at interval in some instances.
Figure expression 220, which is also shown, waits upon the desired location 225 for taking motor 102 at corresponding renewal time.Desired location 225
Can be at definite renewal time corresponding with special time frame, for particular type print media 119, work as print media
For example have been determined as completing based on test measurements when not sliding and be stored in the memory associated with controller 110
In the revolution or fraction of waiing upon the rotation for taking motor 102 and/or its output shaft 103.For example, time frame Δ t1231 be by 227
What the renewal time t at the renewal time t-1 at place and 228 was defined, and time frame Δ t2232 be by 228 renewal time t
Defined with the renewal time t+1 at 229.
Waiing upon the comparison of the desired location 225 and measurement position 226 that take motor 102 can carry out at any renewal time.
At any specific renewal time, the measurement position 226 of servomotor 102 may differ from desired location 225.For example, position can base
It is different in sliding of the pick-up roller 115 on print media 119, which increase frictional force (for example, dragging), slow down pick-up roller
115 rotation, for example, angular speed.The angular speed of pick-up roller 115 can for example by via driving member 114, feeding roll assembly 112,
Drive the mechanically connected positions and/or speed corresponding to servomotor 102 such as 104.Measurement position 226 and desired location 225
Value can have associated time reference respectively.For example, a value can be determined at current renewal time t, and come from previously more
The value of new time t-1 can determine average speed (speed) of the servomotor 102 in that time frame as benchmark, for example,
Velocity (t)=[Position (t)-Position (t-1)]/Δ t.
Therefore, controller 110 is for example combined with coding disk 108 and sensor 106 and can determine that and increase on servomotor 102
Load, and improve the moment of torsion of servomotor 102 to compensate pickup corresponding with the reduction of the speed of the reduction of servomotor 102
The angular speed of the reduction of roller 115.The moment of torsion of raising may correspond to and/or can be identified as the change for the PWM being for example associated, example
Such as, increase.
Figure represents that 220 also show site error 236 and can be determined as example at specific renewal time and/or spy
Fix time the difference determined between desired location 225 and measurement position 226 by subtraction in frame.For example, can be in each time frame
Site error 236-1 and 236-2 are determined at end time point, corresponding to time frame Δ t1Renewal time t at 228 in 231 and
Time frame Δ t2Other possible time point positions in renewal time t+1 and each time frame at 229 in 232.Position
Error 236 may correspond to the slippage in special time frame, and can be compared with previous time frame and subsequent time frame.This
Class compares available for determining that the compensatory of 102 moment of torsion of servomotor is regulateed whether to have reduced or stopped sliding, so that for example
The constant position error between adjacent time frame is maintained, or makes the measurement position 226 of servomotor 102 closer to desired location
225 and thus reduce site error.Compare and can also be used to determining the compensatory of servomotor 102 is regulateed whether not yet to play gram
The effect of sliding is taken, such as by the measurement position 226 of servomotor 102 whether away from desired location 225 and subsequent time
Whether site error increases and determines in frame.
For example, renewal time t that can be at 228 determines the site error 1 as shown in 236-1.Beaten based on identified
Print medium and obtain operating parameter (for example, precision, calibration value etc.), the site error 1 at 236-1 can represent or can not indicate that cunning
Move., can be to moment of torsion the compensating property tune of servomotor 102 when determining that the site error 1 at 236-1 represents sliding really
It is whole.In subsequent time frame Δ t2In 232, the renewal time t that can be directed at 229 determines the site error 2 at 236-2.For
Previous time frame, the amount of the site error 2 at 236-2 are more than the amount of the site error 1 at 236-1.Thus can determine that：It is compensatory
Adjustment, for example, the moment of torsion for improving servomotor 102 fails to overcome sliding, and described here replaces printing acquisition operation
Transsexual adjustment can may more effectively overcome sliding and the then pressurization to pick-up roller 115.Alternatively or except this with
Outside, can be based on the difference of desired location 225 and measurement position 226 between adjacent time frame or in time frame change rate (such as
Increased slope and other may change) be met or exceeded by threshold value, being made by controller 110 to print media obtain grasp
The decision of being replaced property adjustment.In contrast, for the renewal time t+2 at 230, the site error 3 at 236-3 is less than
Site error 2 at 236-2, this may represent that the compensatory adjustment of the moment of torsion of servomotor 102 overcomes sliding.
How much the amount of site error at one renewal time can be used for the definite moment of torsion increase by servomotor 102, and
And it can determine that the effect that sliding is overcome at adjacent (such as next) renewal time.At adjacent renewal time or one
Determine that the adjustment (such as the adjustment represented by the increase of PWM) to moment of torsion fails efficiently against sliding after serial renewal time
It can represent that the replaceability adjustment described here that operation is obtained to printing may be more effective.
When sliding, the site error 236 of special time frame (such as time frame Δ t2232 site error 236-
2), it is likely larger than (such as the time frame Δ t of site error 236 of previous time frame1231 site error 236-1).PWN (electricity
Pressure) future time frame (such as the Δ t that can be obtained in print media3234) increase in.To this of the moment of torsion of servomotor 102
A series of adjustment it is sustainable until the PWM associated with the adjustment (for example, increase) to moment of torsion be met or exceeded by threshold value so that
Sliding is represented, for example, such as showing with 349 and being described with reference to Fig. 3.
Fig. 3 is exemplified with the example for determining the sliding of pick-up roller 115 during print media obtains according to the disclosure.Fig. 3
340 are represented with being picked up during print media obtains exemplified with the figure of the sliding in pick-up roller during print media obtains 115
The figure that roller 115 does not slide represents 350 comparison.
Figure represents that 340 show for print media acquisition operation in the angle of initial time (Ts) place pick-up roller 115 speed
The increase of rate 342 and the increase of corresponding PWM 346, indicate the moment of torsion of servomotor 102.As shown in 340, it is situated between in printing
During matter obtains operation, even if sliding of the pick-up roller 115 on print media 119, the angular speed 344 of pick-up roller 115 occurs
Relative constancy can be kept, for example, being in default angular speed.The angular speed 344 of pick-up roller 115 can the torsion based on servomotor 102
Square is adjusted maintaining relative constancy to compensate site error 236, with reference to described in Fig. 2, even if sliding.
In figure represents 340, during print media obtains, the associated PWM 346 of moment of torsion with servomotor 102
(servomotor PWM) can maintain relative constancy 347, for example, which reflects the servomotor 102 when starting print media and obtaining
Moment of torsion relative constancy.However, during sliding 348, PWM 346 for example may undergo quick change based on chronomere.Change
Amount and/or change rate can be used to determine to the moment of torsion for adjusting servomotor 102 to overcome sliding 348 by such as controller 110
Alternative, as described in this.For example, for determining that the variable quantity of alternative can be based on the change from relative constant PWM
The threshold value of change.Change rate can the threshold value based on the slope 349 of change, such as determined by the variable quantity in special time frame.It can make
Determined with other because usually determining：Whether can be using alternative and/or using which kind of alternative come instead of adjustment servo electricity
The moment of torsion of machine 102 is to overcome sliding 348.For example, controller 110 can perform Linear Control, integration control and/or differential control
(PID) instruct to contribute to such determine.
Figure represents that 350 also show the increasing that operation angular speed 352 of pick-up roller 115 at Ts is obtained for print media
It is subject to and the increase of corresponding PWM 356.As shown in 350, the angular speed 354 of pick-up roller 115 can be obtained in print media to be operated
Period maintains relative constancy, for example, default angular speed is in, because cunning of the pick-up roller 115 on print media 119 will not occur
Move.In figure represents 350, servomotor PWM 356 can maintain relative constancy 357, such as this during print media obtains
Reflect the relative constant moment of torsion of the servomotor 102 in the acquisition of whole print media.In some instances, when not sliding
When moving or small sliding only occurs, fluctuation 358 occurs in PWM.However, such fluctuation 358 represents what is shown in 340 with figure
The difference of the sliding 348 of PWM can be variable quantity and/or change rate without so big.For example, the slope 359 of fluctuation 358 can be small
In the slope 348 of sliding 348, so as to for example be unsatisfactory for threshold value.
Fig. 4 is exemplified with the schematic diagram of the example system 460 for being used to adjust print media acquisition according to the disclosure, system
460 include non-transitory MRM 464 and processing source 462, such as multiple processors.For example, system 460 can be in Fig. 1-Fig. 3
The implementation of example system or the exemplary method in Fig. 5.
Processing source 462 may include multiple central control units (CPU), microprocessor and/or other are suitable for obtaining and operation
The hardware unit for the instruction being stored in MRM 464.As the alternative to acquisition and operating instruction or in addition, place
Reason source 462 may include circuit, which includes the electronics of multiple functions of being used to perform one or more of MRM 464 instructions
Element.On be described herein and show can operating instruction represent (for example, frame in Fig. 4), it should be understood that it is real in replaceability
Apply be included in example in frame it is some or all can operating instruction and/or circuit be possibly comprised in the different frames shown in figure
In or included in the different frames not shown in figure.
Processing source 462 can run the instruction being stored on MRM 464.MRM 464 can be any type of volatibility or non-
Volatile memory or reservoir.MRM 464 can be storage can any electricity of operating instruction, magnetic, light or the storage of other physics fill
Put.Thus, MRM 464 may be, for example, random access memory (RAM), Electrically Erasable Programmable Read-Only Memory (EEPROM), dodge
Storage, read-only storage (ROM), hard disk, storage driving, CD wait or a combination thereof.MRM 464 may be provided in system 460,
As shown in Figure 4.In this case, can operating instruction can be by " installation " in system 460.Alternatively or additionally, MRM
464 can be for example to allow system 460 to deposit from the portable, exterior of portable/outside/remote medium storage download instruction or remotely
Storage media.In this case, can operating instruction can be " installation kit " a part.
MRM 464 can store the instruction that can be run by processing source 462.For example, MRM 464 can store instruction 466 with：Instruction
Printing equipment determine print media obtain operation during at first time frame (for example, the Δ t in Fig. 21At 231) servo
The measurement position (for example, such as show with 226 and be described with reference to Fig. 2) of motor 102 is to drive 104 pick-up rollers 115.MRM
464 can store instruction 468 to determine the measurement position 226 of the servomotor 102 at first time frame 231 and desired location 225
Between first position error, such as the site error 1 at 236-1.MRM 464 can store instruction 470, with response to first
Error 236-1 is put, the moment of torsion after adjustment is applied to by pick-up roller 115 by servomotor 102.MRM 464 can store instruction 472
To determine in the second time frame (for example, Δ t2232) between the measurement position 226 and desired location 225 of place's servomotor 102
Second place error, such as the site error 2 at 236-2.MRM 464 can also store instruction 474, with based on determining second
Time frame Δ t2At 232 between the desired location 225 and measurement position 226 of servomotor 102 relative to first position error
Second place error 236-2 larger 236-1, adjustment print media obtain operation, as described in this.
In some instances, MRM 464 can store instruction, with determine in the first time frame 231 with the institute of servomotor 102
Apply corresponding first PWM (for example, such as show with 347 and be described with reference to Fig. 3) of the first moment of torsion, and determine with
Applied in second time frame 232 of larger second place error (for example, site error 236-2) with servomotor 102
Corresponding 2nd PWM (for example, such as show with 348 and be described with reference to Fig. 3) of second moment of torsion.MRM 464 can store instruction, with
Based on determining that print media is adjusted relative to the 2nd larger the first PWM PWM obtains operation, for example, being shown in Fig. 3 with 348
PWM amount compared to the amount of the PWM shown in 347.The amount of site error in special time frame may correspond to special time
The amount of the PWM of frame.Represented for example, the amount of the site error 236-1 in Fig. 2 may correspond to (for example, in proportion to) figure in 350
PWM 358 amount, the amount of larger site error 236-2 may correspond to the figure table of (for example, in proportion to) instruction sliding
Show the amount of the larger PWM 348 in 340.
In various examples, MRM 464 can store instruction, with based on determine larger second place error 236-2 and/or
Larger PWM 348 and interrupt (for example, at least temporarily ceasing) print media and obtain operation.As described in this, can be based on compared with
The comparison of the big second place error 236-2 and/or PWM 348 Yu threshold value obtains operation to determine whether to interrupt print media,
Rather than for example continue to adjust the moment of torsion of servomotor 102 and/or reduce the angular speed of pick-up roller 115.In some instances, threshold
Value can be time frame Δ t2The specified quantitative and/or the specified quantitative with the PWM shown in 348 of site error 236-2 in 232.One
In a little examples, threshold value can be the change rate of the site error and/or PWM in adjacent time frame, for example, such as being shown with 349 and 359
And it is described with reference to Fig. 3.
In various examples, MRM 464 can store instruction, with based on determining in the 3rd time frame (for example, Δ t3234) place
The third place error (for example, site error 3 at 236-3) relative to time frame Δ t2Second place error in 232
(such as 236-2) increased change rate and interrupt print media obtain operation.For example, in the 3rd time frame relative to second when
Between frame variable quantity and/or change rate can determine that servomotor 102 moment of torsion regulate whether to have reduced site error and/or
Sliding, this is indicated by associated PWM；It either can determine that whether sliding continues or whether increase.MRM 464, which can be stored, to be referred to
Order, operation is obtained to restart the print media being interrupted after the period is determined.In some instances, determining the period can be
Such as based on the test measurements using various print media 119 being stored in the memory associated with processing source 462
Predetermined amount of time.
Fig. 5 is exemplified with the exemplary method 580 for being used to adjust print media acquisition according to the disclosure.For example, method 580 can
For the implementation of the example system in Fig. 1-Fig. 4.
In 582, method 580 includes：The comparison of site error and threshold value based on servomotor 102 and adjust servo electricity
The moment of torsion of machine 102 is such as described with reference to Fig. 2 and/or Fig. 3 to drive 104 pick-up rollers 115.In 584, method 580 includes
Tracking PWM corresponding with the moment of torsion of servomotor 102, such as described with reference to Fig. 3.In 586, method 580 includes being based on PWM
The change rate of (for example, as shown and with reference to described in Fig. 3 with 349) and determine to pick up during the acquisition of print media 119
The sliding (for example, as shown and with reference to described in Fig. 3 with 348) of roller 115.Indicate sliding PWM change rate and then it is right
Print media obtains the comparison that the adjustment operated can be based on change rate and threshold value.For example, PWM indicated by optimal slope 349
Change rate may be met or exceeded by the threshold value of instruction sliding.In contrast, the change of the PWM indicated by for example optimal slope 359
Rate may be unsatisfactory for the threshold value of instruction sliding.Optimal slope can be used such as least square method and/or linear regression method and its
He is determined possible way by system 100 (for example, controller 110).
In some instances, method 580 may include：226 phase of measurement position based on servomotor 102 in special time frame
Site error is determined for the difference of the desired location 225 of servomotor 102, referring for example to described in Fig. 2A.Can be for example by controlling
Site error in the execution adjacent time frame of device 110 is (by the respective differences in special time frame and the measurement in adjacent time frame
Position 226 determines) comparison, controller 110 can be or may include encoder circuit, as with reference to Fig. 1 show and described in.
Therefore, in some instances, the rotation of pick-up roller 115 can be interrupted.The rotation of pick-up roller 115 can be based on PWM's
The comparison of change rate and threshold value and be interrupted (for example, at least being temporarily ceased), for example, as with reference to described in Fig. 3.Each time
PWM amounts in frame for example can be by the site error between the measurement position 226 and desired location 225 in adjacent time frame and true
Determine, for example, being determined at other possible time points at the end time point in each time frame or in each time frame.Can
Alternatively or in addition, this method may include the comparison of change rate based on PWM and threshold value and reduce angular speed, for example,
With the variation in angular displacement rate of ω or the pick-up roller 115 measured with revolution (rpm) per minute and other unit.
In selection is to interrupt the rotation of pick-up roller 115 or reduce the embodiment of angular speed of pick-up roller 115, in being used for
The threshold value of the rotation of disconnected pick-up roller 115 likely differs from the threshold value of the angular speed for reducing pick-up roller 115.It is for example, larger
PWM change rates (for example, larger threshold value) can be used for determining that print media obtains operation by the rotation by interrupting pick-up roller 115
And it is interrupted.The rotation of pick-up roller 115 can for example be interrupted by the rotation of the servomotor 102 of stopping driving pick-up roller 115
And/or interrupted by separating the driving in driving member 114, and also have other possible modes.Less PWM change rates
(for example, less threshold value) can be used for determining print media obtain operation by by the angular speed that reduces pick-up roller 115 (for example,
The gearratio in rotating speed (for example, rpm) or change driving member 114 by reducing servomotor 102) and change.
After the definite period (for example, predefined and/or indicated by controller 110), the printing being interrupted is situated between
Matter obtains operation and can be restarted repeatedly.It can be restarted 2-6 times for example, print media obtains operation, for example, stopping print media
Before obtaining operation, there is interruption before restarting every time.Stopping print media acquisition operation may be with printing equipment
Specific emergency warning lamp, specific error messages (for example, the wrong of instruction print media 119 passes and/or block) or Service Phone.
Print media, which obtains restarting for operation, may include：Continue to rotate pick-up roller 115 with identical angular speed, for example, beating
Default angular speed when print roller rotates before the interruption.In some instances, print media obtains restarting for operation and may include：After
It is continuous that pick-up roller 115 is rotated with different angular speeds.For example, the rotation of pick-up roller 115 can with relative to marking roll in interruption
The angular speed of angular speed smaller or the angular speed of bigger during preceding rotation and restart.Default angular speed, less angular speed and/
Or larger angular speed can by the various different angular speeds of experiment (such as controlled experiment and/or measurement test) to for example it is various not
The effect of the print media 119 of same size, thickness, weight, component etc. and determine.These experiments be can perform so as in conventional printing
Medium determines to obtain the effect of print media during obtaining using different angular speeds, such as determines the default angle speed of pick-up roller 115
Rate, (passes for example, wrong relative in different situations, blocks etc. and may be produced to pick-up roller 115 and/or to servomotor 102 by example
As caused by sliding pressurization) under use various angular speeds.
In the foregoing detailed description of the disclosure, it have references to form part thereof of attached drawing, and in the accompanying drawings with example
Mode shows the example that how implement the disclosure.These examples are described in sufficient detail, so that this area
Technical staff can implement the example of the disclosure, and should be understood that, it is possible to use other examples, and can not departing from
Made on the premise of the scope of the present disclosure step, electrically and/or structure on modification.
Attached drawing in this follows following numbering rule：First digit corresponds to figure number, and in remaining numeral identification figure
Element or component.The element shown in each attached drawing of this paper can be increased, exchanged and/or be omitted so as to provide the more of the disclosure
A extra example.In addition, the ratio and relative size of the element provided in each attached drawing are intended to illustrate disclosed example, and
And it is not construed as having any limited.Term " multiple " element as used herein and/or feature are probably including one or more
A this element or feature, suitable for context.
Claims (15)
1. a kind of system, including：
Printing equipment, including：
Pick-up roller, attaches to pick-up arm；
Servomotor, applies moment of torsion to the pick-up arm；And
Controller, it is associated with the servomotor, so that：
Determine to watch relative to described in the desired location of the servomotor in special time frame during print media obtains
Take the measurement position of motor；And
The comparison measured based on pulsewidth modulation (PWM) in adjacent time frame, determines the adjustment that the print media obtains.
2. the system as claimed in claim 1, wherein, PWM amounts are by the measurement position and institute in the adjacent time frame
State the site error between desired location and definite.
3. the system as claimed in claim 1, wherein, the controller：
Sensor is connected to determine the measurement position of the servomotor；And
The measurement position based on servomotor determines the adjacent time frame relative to the site error of the desired location
The interior PWM amounts, and
Wherein, the PWM amounts correspond to the adjustment of the moment of torsion of the servomotor.
4. the system as claimed in claim 1, wherein, the controller：
The comparison of change rate and threshold value based on PWM, controls the angular speed of the pick-up roller during the print media obtains.
5. the system as claimed in claim 1, further comprises：
Coding disk, is driven by the servomotor；And
Wherein, the coding disk includes indicator, so that sensor can aid in the position of the definite coding disk, so that
It can accordingly determine the measurement position of the servomotor.
6. a kind of non-transitory machine readable media, the media storage is by the instruction that processing source can be run to perform following behaviour
Make：
Indicate printing equipment：
The measurement position of the servomotor at first time frame during print media obtains operation is determined, to drive pick-up roller；
Determine locating the first position between the measurement position and desired location of servomotor described in the first time frame
Error；
In response to the first position error, apply the moment of torsion after adjustment to the pick-up roller by the servomotor；
Determine the second place error between the measurement position and desired location of the servomotor at the second time frame；And
Based on determining at second time frame between the desired location of the servomotor and the measurement position
Relative to the second place error that the first position error is larger, adjustment print media obtains operation.
7. medium as claimed in claim 6, including perform the instruction of following operation：
Determine the first pulsewidth modulation corresponding with the first moment of torsion that the servomotor is applied in the first time frame
(PWM)；
Determine applied in second time frame with servomotor second with the larger second place error
Corresponding 2nd PWM of moment of torsion；
Based on definite relative to the 2nd larger the first PWM PWM, adjust the print media and obtain operation；And
Wherein, the amount of the site error in special time frame corresponds to the PWM amounts of the special time frame.
8. medium as claimed in claim 6, including perform the instruction of following operation：
The print media is interrupted based on the definite larger second place error and obtains operation.
9. medium as claimed in claim 6, including instruct with：
The print media is restarted after the definite period and obtains behaviour based on the larger second place error is determined
Make.
10. medium as claimed in claim 6, performs the instruction of following operation：
Comparison based on the larger second place error and threshold value, it is determined whether interrupt the print media and obtain operation.
11. medium as claimed in claim 6, performs the instruction of following operation：
Based on determining the change rate of at the 3rd time frame the third place error relative to the increase of the second place error, in
The disconnected print media obtains operation.
12. a kind of method, including：
The comparison of site error and threshold value based on servo, adjusts the moment of torsion of the servomotor to drive pick-up roller；
Tracking pulsewidth modulation (PWM) corresponding with the moment of torsion of the servomotor；And
Based on the change rate of the PWM, the sliding of the pick-up roller during the acquisition of print media is determined.
13. method as claimed in claim 12, further comprises：
Measurement position based on the servomotor described in special time frame relative to the desired location of the servomotor difference,
Determine the site error.
14. method as claimed in claim 12, further comprises：
The comparison of change rate and threshold value based on the PWM, interrupts the rotation of the pick-up roller.
15. method as claimed in claim 12, further comprises：
The comparison of change rate and threshold value based on the PWM, reduces the angular speed of the pick-up roller.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965729.1A CN108001050B (en) | 2016-10-28 | 2016-10-28 | Adjusting print media acquisition |
| US15/704,422 US10414608B2 (en) | 2016-10-28 | 2017-09-14 | Adjusting print medium retrieval |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610965729.1A CN108001050B (en) | 2016-10-28 | 2016-10-28 | Adjusting print media acquisition |
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| CN108001050A true CN108001050A (en) | 2018-05-08 |
| CN108001050B CN108001050B (en) | 2020-03-13 |
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| CN201610965729.1A Active CN108001050B (en) | 2016-10-28 | 2016-10-28 | Adjusting print media acquisition |
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| CN (1) | CN108001050B (en) |
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| JP7472516B2 (en) * | 2020-02-04 | 2024-04-23 | 富士フイルムビジネスイノベーション株式会社 | Sheet conveying device and sheet conveying program |
| US20230055526A1 (en) * | 2021-08-19 | 2023-02-23 | Hewlett-Packard Development Company, L.P. | Pick roller speeds |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108001050B (en) | 2020-03-13 |
| US10414608B2 (en) | 2019-09-17 |
| US20180118491A1 (en) | 2018-05-03 |
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Address after: American Texas Patentee after: HEWLETT-PACKARD DEVELOPMENT Co.,L.P. Country or region after: U.S.A. Address before: American Texas Patentee before: HEWLETT-PACKARD DEVELOPMENT Co.,L.P. Country or region before: U.S.A. |